Successful type I Leptogenesis with SO(10)-inspired mass relations
| dc.creator | Di Bari, Pasquale | |
| dc.creator | Riotto, Antonio | |
| dc.date | 2008-09-15 | |
| dc.date.accessioned | 2026-07-07T12:36:12Z | |
| dc.date.available | 2026-07-07T12:36:12Z | |
| dc.description | It is well-known that thermal leptogenesis through the decays of the lightest right-handed neutrinos encounters serious difficulties when SO(10)-inspired mass conditions are imposed on the Dirac neutrino mass matrix and light neutrino masses are generated through the type I see-saw mechanism. We show that these can be circumvented when the production from the next-to-lightest right-handed neutrinos and flavor effects are properly taken into account. Some conditions on the low energy parameters have to be satisfied in order for inverse processes involving the lightest right-handed neutrino not to wash-out the asymmetry. In particular we find m_1 \gtrsim 0.001 eV, where m_1 is the mass of the lightest left-handed neutrino and that non-vanishing values of the mixing angle theta_13 are preferred in the case of a normal fully hierarchical spectrum of light neutrinos. | |
| dc.description | 18 pages, 6 figures | |
| dc.identifier | https://arxiv.org/abs/0809.2285 | |
| dc.identifier | http://arxiv.org/abs/0809.2285 | |
| dc.identifier | Phys.Lett.B671:462-469,2009 | |
| dc.identifier | doi:10.1016/j.physletb.2008.12.054 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/218012 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Successful type I Leptogenesis with SO(10)-inspired mass relations | |
| dc.type | text |